@misc{MS2_1957__5_251996,
     title = {[unknown]},
     journal = {Mathematica Scandinavica},
     pages = {4--4},
     publisher = {mathdoc},
     volume = {5},
     year = {1957},
     url = {http://geodesic.mathdoc.fr/item/MS2_1957__5_251996/}
}